The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 07, 2015
Filed:
Jul. 19, 2012
Masaaki Kabe, Kanagawa, JP;
Toshiyuki Nagatsuma, Kanagawa, JP;
Shunsuke Noichi, Kanagawa, JP;
Yasuyuki Matsui, Kanagawa, JP;
Soichiro Kurokawa, Kanagawa, JP;
Akira Sakaigawa, Kanagawa, JP;
Amane Higashi, Aichi, JP;
Masaaki Kabe, Kanagawa, JP;
Toshiyuki Nagatsuma, Kanagawa, JP;
Shunsuke Noichi, Kanagawa, JP;
Yasuyuki Matsui, Kanagawa, JP;
Soichiro Kurokawa, Kanagawa, JP;
Akira Sakaigawa, Kanagawa, JP;
Amane Higashi, Aichi, JP;
Japan Display Inc., Tokyo, JP;
Abstract
A method of driving an image display device including (A) an image display panel in which pixels each having first to fourth subpixels displaying first to third primary colors and fourth color, respectively are arranged in a two-dimensional matrix, and (B) a signal processor, in an i-th image display frame, in the signal processor, first to fourth subpixel output signals are obtained on the basis of at least first to fourth subpixel input signals and a corrected expansion coefficient α', and output to the first to fourth subpixels, respectively, the maximum value V(S) of luminosity with saturation S in an HSV color space is obtained in the signal processor or stored in the signal processor, and in the i-th image display frame, in the signal processor, (a) saturation Sand luminosity V(S) in pixels are obtained, (b) an expansion coefficient αis obtained, and (c) the corrected expansion coefficient α′is determined.